package risoe.syslab.fhnew.common;

/*
 * Copyright (c) 2012-2014, Technical University of Denmark (DTU)
 * All rights reserved.
 * 
 * The Flexhouse 2.0 platform ("this software") is licensed under the
 * BSD 3-clause license.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   - Neither the name of DTU nor the names of its contributors may be used to
 *     endorse or promote products derived from this software without specific
 *     prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE TECHNICAL UNIVERSITY OF DENMARK BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;

public class RMIUtils {
	public static Registry getRegistry(){
		Registry registry = null;
		try{
			// Try using an already created registry, otherwise create a new one
			try {
				registry = LocateRegistry.getRegistry(SystemConstants.DEFAULT_RMIPORT);
				registry.list();
			} catch (RemoteException e) {
				// No registry exists - create a new one
				registry = LocateRegistry.createRegistry(SystemConstants.DEFAULT_RMIPORT);
			}
		}
		catch (RemoteException e) {
			// This should never happen - The registry is located on the local machine
			System.out.println("Error starting RMI registry!");
		}

		return registry;
	}
}
